baber/WOPTO huggingface dataset:
Patent EP-0271943-A3 (EP)
IPC: C09K8/26
Filed: 1987-11-25
Abstract: A drilling fluid comprising a stable oil in water emulsion 
consisting of 
   a) 50-96 %v aqueous phase    b) 3-40 %v oil phase    c) 1-10 %v of at least one surfactant belonging to the class of 
   a) ethoxylated amines;    b) ethoxylated diamines; and    c) quaternary ethoxylated ammonium salts.
Patent EP-0233715-A3 (EP)
IPC: C12N15/53
Filed: 1987-01-28
Abstract: DNA sequences obtained from  S .  clavuligerus  ATCC 27064, 
recombinant vectors incorporating such sequences and 
hosts transformed with such vectors are disclosed.  
     The DNA comprises one or more genes coding for one or 
more enzymes involved in the biosynthesis of penicillin 
and cephalosporin β-lactams and such enzymes are 
expressed by hosts into which the recombinant vectors 
are transformed.  
     The DNA and the enzymes encoded thereby have utility in 
the preparation of penicillins and cephalosporins, both 
known and novel, possessing pharmacological, especially 
antimicrobial, activity.
Patent EP-0240329-A3 (EP)
IPC: G10L21/0208
Filed: 1987-04-01
Abstract: In speech recognition it is advantageous to take account of 
noise levels both in recognition and training. In both processes 
signals reaching a microphone 10 are digitised and passed through a 
filter bank 13 to be separated into frequency channels. In training 
a noise estimator 18 and a masker 15 are used with a processor 17 to 
prepare template signals which are held in a store 16. In each 
region the template signals are made equal to the highest noise 
level in that region during the whole training process if below this 
level. In recognition the input signals in each region are made 
equal to the highest noise level in that region if below this 
level. "Distance" measurements for each region on which recognition 
is based depend on the levels of the template and input signals 
unless either is represented by noise when the relative levels 
determine how the distance shall be calculated.
Patent EP-0248615-A3 (EP)
IPC: E21B17/00
Filed: 1987-06-01
Abstract: Drilling apparatus is coated on selected surfaces 
with PTFE.  
     In the drawing is shown an example of the 
application of the invention to a core barrel assembly.  
     An outer core barrel l0 and an inner core barrel ll 
are shown which are normally in sections.  
     At the lower end of the outer core barrel there is 
attached a core catcher sub l3. At the lower end of the 
inner barrel ll is attached an inner barrel breaker sub l4 
and below that a core catcher l5. A core bit l6 is 
attached to the lower end of the outer barrel.  
     Parts are shown coated with PTFE by thick lines, 
e.g. the inner surface l8 of the inner barrel ll, the 
outer surface l9 of the inner barrel and the inner surface 
20 of the outer barrel l0.  
     The outer surface 2l of outer barrel l0 may also be 
coated for example, and the surface 22 of the drill bit, 
the inner surface 23 of the core catcher and the inner 
surface 24 of the inner barrel breaker sub.
Patent EP-0251714-A3 (EP)
IPC: C07D491/14
Filed: 1987-06-25
Abstract: An enantioselective synthesis of 
l,3,4,6,7,l2b(S)-hexahydro-2H-benzo[b]furo[2,3-a]­
quinolizin-2-one of formula 
  
provides a key intermediate for the preparation 
of the α₂-adrenergic antagonist 
(2R,l2bS)-N-(l,3,4,6,7,l2-hexahydro-2H-benzo[b]furo­
[2,3-a]quinolizin-2-yl)-N-methyl-2-hydroxyethane­
sulfonamide hydrochloride, useful as an anti-­
depressant.
Patent EP-0253554-A3 (EP)
IPC: A61K9/22
Filed: 1987-07-07
Abstract: Orally administerable drug-containing fibers for 
controlling drug release in the gastrointestinal tract 
of a mammal.
Patent EP-0260968-A3 (EP)
Title: Shock absorber with gas charged return spring
IPC: F16F9/48
Filed: 1987-09-17
Abstract: A shock absorber comprising a housing assembly (12) including an elongated cavity (98) for containing hydraulic fluid, an annular cavity (104) surrounding the elongated cavity, a piston assembly (14) including a head slidably received by the elongated cavity and a rod joined to the head for movement therewith, a compressible bladder (16) containing gas under pressure positioned within the annular cavity, and a plurality of orifices (34) defined within the housing assembly through which the elongated and annular cavities communicate with one another. The rod extends through the housing assembly and is movable with the piston head between extended and retracted conditions. The bladder is positioned within the annular cavity so as to extend along at least a portion of the annular cavity and leave uncovered a portion of the inner wall. The plurality of orifices are arranged in a pattern along the uncovered portion of the inner wall. When shock forces acting upon the shock absorber move the rod from the extended condition to the retracted condition and thereby force hydraulic fluid from the elongated cavity into the annular cavity through the open ones of the orifices, the bladder is compressed from an expanded condition to a contracted condition to function as an accumulator and to store energy for returning the rod to the extended condition once forces acting upon the shock absorber are relieved.
Patent EP-0251990-A3 (EP)
IPC: B05B1/18
Filed: 1987-06-17
Abstract: A pistol hose nozzle (10) including a handle (12) 
structure and a barrel (14) structure extending forwardly 
from the upper end thereof. The handle (12) and barrel (14) 
structures are formed of two outer shell parts (18, 20) 
enclosing an inner conduit (16) providing a water flow 
path between an inlet at the lower end of the handle (12) 
structure and an outlet at the forward end of the 
barrel (14) structure. A spring actuated on-off valve 
mechanism (26) is disposed within the handle (12) portion of 
the flow path and a fixed orifice is disposed within 
the barrel (14) portion of the flow path. A variable 
leverage mechanism (30) serves to transmit the movement 
of a finger trigger (74) to the valve mechanism (26). A thumb 
actuated mechanism is provided for selectively 
retaining the trigger (74) in its operating position. 
Coupling means is provided in the forward end of the 
barrel structure and rearward tubular portions of an 
adjustable spray assembly and a rotary outlet 
assembly for enabling either to be detachably 
interengaged therewith.
Patent EP-0286818-A3 (EP)
Title: Anti-overrunning device for an internal combustion engine
IPC: F02D9/02
Filed: 1988-03-03
Abstract: An anti-overrunning device for an internal combustion 
engine characterized in that a vibration sensor (101) is 
connected to a passage (49) communicating with atmosphere 
of a vibrating pump (41) which normally feed pneumatic 
pressure to an actuator (81) of which rod (92) is retracted by 
means of a spring (89) to urge a throttle valve lever (29) in 
a direction of closing the throttle valve (27).
Patent EP-0285897-A3 (EP)
IPC: H04M1/00
Filed: 1988-03-22
Abstract: A communications distribution system (20) provides service for 
local business and residential premises with fewer splice points required and 
less waste than encountered in prior art systems. The system includes a 
feeder distribution interface (60) which is served by a feeder cable or by a 
carrier system and at least one group interface (61) which is disposed to 
serve customers' premises. A backbone cable segment (62) extends from the 
feeder distribution interface to a single group interface and is capable of 
providing service to a plurality of customer premises. Each customer's 
premises is served by a single distribution service cable (66) which is 
connected to a backbone cable segment at a group interface. The single 
distribution service cables for an area may extend radially or laterally from 
a group interface.
Patent EP-0303000-A3 (EP)
Title: Device for centering and clamping workpieces
IPC: B23Q7/04
Filed: 1988-04-26
Abstract: The device comprises clamping levers (2, 3 and 4) pivotably mounted on a base plate (1), of which the clamping levers (2) and (3) are arranged coaxially to one another on a pivot pin (5), while the other clamping lever (4) is mounted on a second pivot pin (6) which is at the same distance from the centre (11) of the device as the pivot pin (5). The bearing surfaces (33, 34, 35) with which the clamping levers (2, 3, 4) seize a workpiece (39) are designed in such a way that the perpendicular (39, 40, 41) to the respective tangent (42, 43, 44) at the contact point (36, 37, 38) between bearing surface and workpiece runs through the centre (11) of the device. In this way, the workpiece is always thrust into the centre and thus centred during the clamping operation irrespective of its diameter. On account of the arrangement of the clamping levers, it is possible to push in workpieces transversely to the chuck axis despite the concentric clamping operation. 
<IMAGE>
Patent EP-0298229-A3 (EP)
IPC: B29C65/64
Filed: 1988-05-20
Abstract: 2.1 Die Dünnplatten werden bisher in einer Plattenreihe dem Preßspalt 
(3) einer Bandpresse (1) oder einer Kaschiermaschine zugeführt, und 
zwar in kontinuierlichem Betrieb zusammen mit der Folie (7) o.dgl., die 
auf die Dünnplatten aufkaschiert wird. Beim Einlaufen der Dünnplatten 
in den Preßspalt (3)kann ein Versatz der einlaufenden Platte zur vor­
auslaufenden Platte in der Förderebene oder quer zur Förderebene oder 
ein Abstützen auf die vorauslaufende Platte auftreten.  
         2.2 Dies wird dadurch vermieden, daß die Dünnplatten an den einander 
zugewandten Stirnseiten mit fluchtenden oberen und unteren Begrenzungs­
flächen miteinander zu einem Plattenstrang (6a) verbunden werden, die 
Folie (7) aufkaschiert wird und aus dem Plattenstrang die Einzelplatten 
durch ein Trennen im Verbindungsbereich vereinzelt werden.  
         2.3 Herstellung von Platten für die Möbelindustrie.
Patent EP-0295590-A3 (EP)
IPC: C11D3/37
Filed: 1988-06-11
Abstract: Zur Verbesserung des Reinigungs- und Schmutzdispergierver­
mögens von flüssigen Reinigungsmitteln werden ihnen 0,01-1 
Gew.-% eines Reinigungsverstärkergemisches im Gewichtsverhältnis 
Polyacrylamid : hochpolyethoxylierten Alkanolen von 1 : 3 bis 3 : 
1 zugesetzt. Bevorzugte Polyacrylamide sind Polymere oder Copoly­
mere des Acrylamids mit Molgewichten von bevorzugt 2000000 bis 
12000000. Die hochpolyethoxylierten ein- oder mehrwertigen Alka­
nole sind Anlagerungsprodukte von 30-150 Mol Ethylenoxid an end- 
oder innenständige Hydroxyalkanole mit 12-22 C-Atomen bzw. Anla­
gerungsprodukte von 40-90 Mol Ethylenoxid an Stearyl- oder 
12-Hydroxystearylalkohol.
Patent EP-0307700-A3 (EP)
Title: Disc concentrator
IPC: B01D33/15
Filed: 1988-08-29
Abstract: In a disc concentrator used for the dehydration of suspensions, with axially spaced suspension chambers and filtrate chambers which are open towards a stationary trough and are mutually separated by rotatable screen filter discs, the individual filtrate chambers are divided by radially and axially extending transverse walls into individual filtrate chamber sections which are distributed around the periphery and preferably sealed from one another. In addition, the filtrate outlet on the bottom side of each filtrate chamber is divided into at least two mutually separate filtrate outlet sections on the outlet side, which are arranged one after the other in the peripheral direction of the trough, for filtrate of varying purity. In conjunction with the individual outlet sections, the transverse walls ensure effective filtrate separation. In addition, the outlet sections can also be subjected to vacuum, in order to accelerate the dehydration process. <IMAGE>
Patent EP-0300703-A3 (EP)
Title: Depth buffer priority processing for real time computer image generating systems
IPC: G06T15/40
Filed: 1988-07-15
Abstract: A method is disclosed for determining color 
information in a computer image generated display in 
which the display is divided into a plurality of 
spans and each span comprises a matrix of pixels, 
each of the pixels being further divided into a 
matrix of subpixels, which method (or apparatus for 
performing it) allows overlapping and inner 
penetrating faces appearing in an image to be resolved 
without conflict. Faces of objects appearing in an 
image are resolved by a range ordering process for 
each span in an image. The faces are reordered into 
range separable groups in which a range separable 
group is defined as faces in which the maximum range 
to the most distant face in a group does not overlap 
the minimum range of the nearest face in another 
group. Each range separable group of faces is then 
processed on a per pixel basis for determining the 
color contribution of that face or group of faces to 
each subpixel within a pixel. In one form, the 
process of identifying the colors contributing to a 
pixel may be terminated at the end of processing of 
one group of faces when at least a minimum number of 
 
 
subpixels within a pixel have been identified as 
covered by faces in the processed group. Where groups 
of faces cannot be divided into range separable 
groups, forced separation of groups can be implemented 
by establishing a predetermined maximum number of 
faces in a group or by inserting a pseudo-face within 
a group and breaking the groups at the pseudo-face.
Patent EP-0297017-A3 (EP)
IPC: H01B13/012
Filed: 1988-02-03
Abstract: The invention refers to a tip for electronic circuit manual 
wiring devices intended as an accessory to the device described 
in Patented Invention 538.032. The inside of the free end of 
the tip which cylindrical in shape and small in diameter comprising 
the wire projection guide, has dihedral peaks arranged in the 
direction of its generatrices, producing automatic stripping of 
the varnish coating on the wire, when the entire device and 
consequently the tip describe a planetary movement around the 
electronic component pin, to wind the wire producing the intended 
connection. The outer surface of the tip's free end also has fine 
grooves or any other type of irregularity, converting it into a 
"useful" stripper permitting manual elimination of the varnish 
coating on the wire at any point of same, especially during 
winding around the electronic components pins, to subsequently 
establish the same wire connections.
Patent EP-0298890-A3 (EP)
IPC: C07C51/60
Filed: 1988-07-01
Abstract: The new ester is N,N-dimethylaminoethanol 2-(p-­
isobutylphenyl)-propionate.  
     The process comprises reacting 2-(p-isobutylphenyl)-­
propionic acid with thionyl chloride to provide the corres­
ponding acid chloride, which is reacted with N,N-dimethyl­
aminoethanol to give the new ester.
Patent EP-0325242-A3 (EP)
Title: Method for refining molten steel in a vacuum
IPC: C21C7/10
Filed: 1989-01-19
Abstract: A method for refining molten steel in a vacuum 
comprises an immersion process, wherein two immersion 
nozzles (5) (6) arranged at the lower portion of 
a vacuum vessel (4) are immersed in molten steel (2) in 
a ladle (1); a dissolving process, wherein gases are 
dissolved in molten steel by blowing gases containing 
at least gas soluble in the molten steel from a gas 
blow-in opening (3) arranged in a ladle (1) in the molten 
steel; a first degassing process, wherein the molten 
steel is degassed by keeping the the vacuum vessel 
evacuated, having the molten steel circulated between 
the ladle and the vacuum vessel by injecting gases 
containing at least an inert gas from the middle (7) of the 
rising tube (5) and blowing gases containing at least gas 
soluble in the molten steel from a gas blow-in opening (3) 
arranged in the ladle (1); and a second degassing process, 
wherein the molten steel is degassed by keeping the 
vacuum vessel evacuated, stopping a gas blow-in from the 
gas blow-in opening (3) arranged in the ladle (1) and having the 
molten steel circulated between the ladle and the vacuum 
vessel by injecting gases containing at least an inert 
gas from the middle (7) of the rising tube (5) in the molten 
steel (1).
Patent EP-0330237-A3 (EP)
Title: Method of coating doors or door panels with synthetic resins
IPC: B05D3/06
Filed: 1989-02-24
Abstract: Method of coating a door panel or the like with synthetic resin, which panel is provided with a synthetic insulating filling inside a sheet-metal shell to be coated on the outside, the heat resistance of which filling lies below the temperature which is required for the melting or coating of the synthetic resin powder applied to the outside surfaces of the sheet-metal shell. To prevent excessive thermal loading of the insulating filling, the said method is distinguished by the fact that the melting or coating temperature is carried out so quickly and briefly after applying the coating synthetic resin powder by means of an energy radiation, in particular with the aid of one or more energy beams, that the melting or coating temperature is reached in the applied synthetic resin powder or the boundary zone of the sheet-metal shell to be coated without the insulating filling being heated beyond its heat resistance, an energy radiation source being moved over the outer surface provided with synthetic resin powder of the sheet-metal shell, which is in particular kept stationary.
Patent EP-0333229-A3 (EP)
IPC: B65D33/06
Filed: 1989-03-18
Abstract: Die erfindungsgemäße Tragbügelanordnung weist zwei Tragbügel 
(12) und (32) auf, die an ihren Enden ein Drehgelenk (46) 
bilden, das einerseits ein Einrasten der Tragbügel (12, 32) 
aneinander und andererseits eine auszugssichere Befestigung auch 
bei stark belastetem, an die Tragbügel (12, 32) angeschweißtem 
Beutel ermöglicht.
Patent EP-0327144-A3 (EP)
Title: Sample holder for pasty sample and method for processing pasty samples
IPC: G01N1/28
Filed: 1985-11-28
Abstract: A sample holder (10) for pasty sample material, especially stools, to be dispersed in a suspension fluid has a sample holder cup (12), which is arranged on a holder lid (14) and is open towards the base of the holder. The base of the holder is designed with a raised area (28), which is designed to complement the sample holder cup (12). The cup wall (42) is provided at least in some areas with sieve openings (44) through which, when the sample holder (10) is closed with the aid of the holder lid (14), the sample material is pressed out and is dispersed finely in the suspension fluid (46). <IMAGE>
Patent EP-0353489-A3 (EP)
Title: Automated chemical storage and chemical feed system
IPC: G05D9/12
Filed: 1989-07-06
Abstract: An automated chemical storage and chemical feed 
system for a use station to chemically treat and monitor a 
process at a use station where the process is being run, 
including one or more base chemical supply tanks at the use 
station storing chemicals intermittently or continuously 
feeding the chemicals to the process. A level sensor is 
provided in each base tank to determine the chemical level and 
to deliver a signal to a control and processing unit. Sensors 
may be provided on the process for providing chemical 
condition information to the control and processing unit. A 
telemetry system receives the information from the control and 
processing unit and transmits it to a supply station where the 
information is recorded and read out to monitor the chemical 
supply in the base tank and to monitor the chemical condition 
of the process so that the chemical feed may be adjusted as 
needed and so that further chemical may be delivered to the use 
station to be introduced into the base tank and maintain an 
adequate supply to prevent interruption of the process. Refill 
tanks are shipped from the supply station to the use station, 
transported to the base tank, and emptied into the base tank. 
Thereafter, the refill tanks are returned to the supply station 
to be refilled.
Patent EP-0374941-A3 (EP)
IPC: G10L19/10
Filed: 1989-12-22
Abstract: In an encoder device for encoding a sequence of 
digital speech signals classified into a voiced sound 
and an unvoiced sound into a sequence of output signals, 
by the use of a spectrum parameter and pitch parameters, 
at every frame having N samples where N represents an 
integer, a judging circuit judges whether the digital 
speech signals are classified into the voiced sound or 
the unvoiced sound to produce a judged signal 
representative of a result of judging. A processing 
unit processes the digital speech signals in accordance 
with the judged signal to selectively produce a first 
set of primary sound source signals and a secondary 
sound source signals. The first set of primary sound 
source signals are produced when the judged signal 
represents the voiced sound and are representative of 
locations and amplitudes of a first set of excitation 
multipulses calculated at every frame. The second set 
of secondary sound source signals are produced when the 
judged signal represents the unvoiced sound and are 
representative of the amplitudes of a second set of 
excitation multipulses each of which is located at 
intervals of a preselected number of the samples.
Patent EP-0376241-A3 (EP)
Title: Method of preparing polyvinyl alcohol gel and mri phantom
IPC: G01R33/58
Filed: 1989-12-27
Abstract: A method of preparing a polyvinyl alcohol hydrogel 
contains the steps of charging an aqueous solution of a 
polyvinyl alcohol having a degree of hydrolysis of not less 
than 95 mol% and an average polymerization degree of not 
less than 500 into a container, the aqueous solution 
containing the polyvinyl alcohol in a concentration of not 
less than 5 wt.%, cooling the aqueous solution of the 
polyvinyl alcohol at a temperature of from - (minus) 9°C to 
- (minus) 3°C, subjecting the aqueous solution of the 
polyvinyl alcohol to physical stimulation, and then 
maintaining the aqueous solution of the polyvinyl alcohol at 
a temperature of from - (minus) 5°C to + (plus) 5°C. The 
polyvinyl alcohol hydrogel may be contained in a plastic 
container. An MRI phanton is composed of the plastic 
container containing such polyvinyl alcohol hydrogel.
Patent EP-0335486-A3 (EP)
Title: Optical information recording method
IPC: G11B7/125
Filed: 1989-02-14
Abstract: In a method of recording an information signal by using 
a single light beam on a recording medium (1) which is 
changeable between first and second states which are 
optically distinguishable from each other, record marks are 
formed each by application of the light beam for a 
predetermined duration to cause the recording medium (3) to melt 
and the first state. To an area between the second marks is 
applied the light beam after having been modified to have a 
reduced energy to cause the area to melt and become a state 
substantially identical to the second state, whereby the 
record marks can be read highly reliably. In another 
aspect, each record mark is formed in a symmetrical shape by 
application of a train of light pulses providing an energy 
gradually reduced from the beginning to the ending of the 
predetermined duration.
Patent EP-0351082-A3 (EP)
Title: Catalytic combustion
IPC: F23D14/18
Filed: 1989-06-23
Abstract: A catalytic combustion system, e.g. in a gas turbine, has 
a combustion catalyst supported by a honeycomb structure (20) and an 
integral, or separate, catalyst-free honeycomb section (22) upstream of 
the combustion catalyst acting as, or supporting, a flame trap.
Patent EP-0359517-A3 (EP)
IPC: C08J9/00
Filed: 1989-09-12
Abstract: A method of producing a foamed product having a den­
sity less than 0.2 g/cm³, which comprises foaming a compo­
sition comprising a major proportion of a low viscosity 
polypropylene component having a melt viscosity (at 190~C 
and a shear rate of 1000 sec⁻¹) of less than 2 x 10³ poise 
and a minor proportion of a high viscosity polypropylene 
component having a melt viscosity (at 190~C and a shear 
rate of 1000 sec⁻¹) of greater than 2.5 x 10³ poise.